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Table 7 Multivariate analysis for relationships between extracted factors and kidney stone formation

From: Kidney stone formers have more renal parenchymal crystals than non-stone formers, particularly in the papilla region

  OR (95% CI) For stone formers P-value*
Smoking (+) 1.95 (0.40–9.92) 0.4037
RBC (≤ 4.6 × 106/μL) 0.30 (0.03–2.38) 0.2518
Ht (≤ 48%) 1.28 (0.17–12.01) 0.8135
Urinary RBC (≤ 4.3/μL) 1.52 (0.28–8.29) 0.6211
Urinary bacteria (≤ 0.99 × 103/μL) 4.46 (0.90–29.08) 0.0687
Renal papillary crystals (+) 5.55 (1.08–37.18) 0.0395
UMOD (existing ratio < 0.001) 4.15 (0.67–37.96) 0.1313
  1. *P < 0.05 indicates a statistically significant difference. OR odds ratio, CI confidence interval, RBC red blood cell, Ht hematocrit, UMOD uromodulin
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